CN201729606U - Movable rope bearing device of tower crane - Google Patents
Movable rope bearing device of tower crane Download PDFInfo
- Publication number
- CN201729606U CN201729606U CN2010202525410U CN201020252541U CN201729606U CN 201729606 U CN201729606 U CN 201729606U CN 2010202525410 U CN2010202525410 U CN 2010202525410U CN 201020252541 U CN201020252541 U CN 201020252541U CN 201729606 U CN201729606 U CN 201729606U
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- China
- Prior art keywords
- rope
- amplitude variation
- tower crane
- carriage
- forestock
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- Expired - Fee Related
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Abstract
The utility model discloses a movable rope bearing device of a tower crane, which belongs to the field of safety auxiliary equipment of a crane and particularly relates to the movable rope bearing device of the tower crane. The movable rope bearing device comprises a variable-amplitude trolley (3), a plurality of rope guide wheels (11) arranged on the lower side and at the front and back ends of an upper chord frame of a cargo boom (4) and a variable-amplitude traction rope (5), wherein the variable-amplitude trolley (3) is arranged on a lower chord slide rail of the cargo boom (4). The movable rope bearing device is characterized in that: the front and back sides of the variable-amplitude trolley (3) are provided with a front rope bearing frame (1) and a back rope bearing rack (2); and the variable-amplitude traction rope (5) passes through each rope guide wheel (11) and connects the front rope bearing frame (1), the variable-amplitude trolley (3) and the back rope bearing rack (2) in series in turn. The movable rope bearing device has compact structure, is convenient to install and maintain and fundamentally eliminates the accident hidden trouble that a hoisting rope below the cargo boom drops.
Description
Technical field
The portable rope supporting device of tower crane belongs to crane safety accessory equipment field, is specifically related to the portable rope supporting device of a kind of tower crane.
Background technology
Large-scale and the ultra-large type tower crane is much in 60 meters because of its crane arm work range, and hoisting weight is big, so the diameter of the derrick line that is equipped with is corresponding thicker, deadweight is also just bigger, and this has just caused the significantly sagging of unsettled section derrick line under the jib for tower crane.When especially tower crane is unloaded, because of crane arm below derrick line sagging excessive, sagging derrick line very easily with the tower crane operating range in building, structures or scaffold mutual interference takes place, thereby cause the generation of safety misadventure.
Summary of the invention
The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of compact conformation is provided, is convenient to installation and maintenance, fundamentally eliminate the portable rope supporting device of tower crane of crane arm below derrick line sagging problem.
The technical scheme that its technical matters that solves the utility model adopts is: the portable rope supporting device of this tower crane: comprise amplitude variation trolley, be installed in wind up a plurality of sheaves of framework underside and forward and backward end of crane arm, and luffing hauling rope, amplitude variation trolley is installed on the crane arm lower edge slide rail, it is characterized in that: add forestock rope support and butt rope support respectively in the forward and backward both sides of amplitude variation trolley, the luffing hauling rope is walked around each sheave successively with forestock rope support, amplitude variation trolley and the series connection of butt rope support.
Described forestock rope support comprises two pairs of carriage pulleys, holder rope running roller, otic placode, push rod and carriage, two pairs of carriage pulley horizontal symmetrical are installed in the carriage inside upper part, two outsides are provided with otic placode about carriage, and the carriage lower end is provided with holder rope running roller, and the relative side with amplitude variation trolley of forestock rope support is provided with push rod.
Described butt rope support is identical with forestock rope support structure, and looking-glass symmetry is installed.
Described amplitude variation trolley both sides and lower edge slide rail junction are provided with little conductor rope otic placode, and little conductor rope otic placode is two, and front and back are symmetrical arranged, and the inboard is provided with little sheave.
Compared with prior art, the beneficial effect that had of the portable rope supporting device of tower crane of the present utility model is: install this rope supporting device additional and fundamentally eliminate the sagging accident potential of derrick line; Because of the hoist working condition of suspension hook of large-scale and ultra-large type tower crane comprises various working such as 2 multiplying powers, 4 multiplying powers, 6 multiplying powers, the more little suspension hook weight of multiplying power is light more, because crane arm below steel rope weight is constant, cause the sagging situation aggravation of steel rope, install this cover rope supporting device additional, can prevent effectively that steel rope is sagging, be convenient to carry out the change multiplying power operation of tower crane; Have that low cost of manufacture, fault rate are low, compact conformation, be convenient to advantages such as installation and maintenance, result of use are better than the fixed type rope supporting device of QTZ250 tower crane, very good promotion prospect is arranged.
Description of drawings
Fig. 1 is the utility model mounting structure scheme drawing.
Fig. 2 is the utility model forestock rope support structural representation.
Fig. 3 is little conductor rope otic placode of the utility model and little sheave structural representation.
Wherein: 1, forestock rope support 2, butt rope support 3, amplitude variation trolley 4, crane arm 5, luffing hauling rope 6, carriage pulley 7, holder rope running roller 8, otic placode 9 push rods 10, carriage 11, sheave 12, derrick line 13, little conductor rope otic placode 14, little sheave.
Fig. 1~2nd, the most preferred embodiment of the portable rope supporting device of the utility model tower crane is described further below in conjunction with 1~2 pair of the utility model of accompanying drawing:
The specific embodiment
Embodiment 1
With reference to accompanying drawing 1:
The portable rope supporting device of tower crane, holder rope support 1,2 before and after comprising, amplitude variation trolley 3 is installed in crane arm 4 wind up a plurality of sheaves 11 of framework underside and forward and backward end and luffing hauling rope 5.Amplitude variation trolley 3 is installed on the crane arm 4 lower edge slide rails, and amplitude variation trolley 3 both sides and lower edge slide rail junction are provided with little conductor rope otic placode 13, and little conductor rope otic placode 13 is two, and front and back are symmetrical arranged, and the inboard is provided with little sheave 14.Forestock rope support 1 is identical with butt rope support 2 structures, and looking-glass symmetry is installed in amplitude variation trolley 3 forward and backward both sides.Each sheave 11 1 end walked around by luffing hauling rope 5 and forestock rope support 1 is fixing, and it is fixing with butt rope support 2 that the other end passes the little sheave 14 of amplitude variation trolley 3, successively with forestock rope support 1, amplitude variation trolley 3 and 2 series connection of butt rope support.Forward and backward holder rope support 1,2 includes two pairs of carriage pulleys 6, holder rope running roller 7, otic placode 8, push rod 9 and carriage 10, two pairs of carriage pulley 6 horizontal symmetrical are installed in carriage 10 inside upper part, and forward and backward holder rope support 1,2 is movably arranged on 4 times wood side-guides of crane arm by two pairs of carriage pulleys 6 of inboard respectively.Carriage about 10 two outsides are provided with otic placode 8, and otic placode 8 is used for fixing luffing hauling rope 5.Carriage 10 lower ends are provided with holder rope running roller 7, and derrick line 12 passes forward and backward holder rope support 1,2, prop up on holder rope running roller 7.Forward and backward holder rope support 1,2 is respectively equipped with push rod 9 with amplitude variation trolley 3 relative sides, is convenient to forward and backward holder rope support 1, the 2 same moved further of amplitude variation trolley 3 promotions in the moving process.
Principle of work and working process are as follows:
When this device is installed, respectively forestock rope support 1 is installed in amplitude variation trolley 3 front portions; Butt rope support 2 is installed in amplitude variation trolley 3 rear portions; When butt rope support 2 is positioned at crane arm 4 root positions, forestock rope support 1 is placed crane arm 4 length direction midways location.Luffing hauling rope 5 one ends are fixed on the forestock rope support 1 left ear, it is fixing to pass little conductor rope otic placode 13 of amplitude variation trolley 3 in-to-ins and little sheave 14 backs and butt rope support 2, walk around again and be installed in wind up a plurality of sheaves 11 of framework underside and forward and backward end of crane arm 4, the other end is fixed on forestock rope support 1 auris dextra, makes luffing hauling rope 5 that forestock rope support 1, amplitude variation trolley 3 and butt rope support 2 are connected to a single-piece C/LOOP.Wearing of derrick line 12 around all holding in the palm rope running roller 7 upsides through forward and backward holder rope support 1,2 belows.
When amplitude variation trolley 3 is positioned at crane arm 4 roots, the horizontal derrick line 12 in amplitude variation trolley 3 the place aheads produces serious sagging tendency, at this moment, forestock rope support 1 is positioned at the midway location (being maximum sag place) of crane arm 4 length directions substantially, and its holder rope roller 7 is held sagging derrick line 12 in scope of design; When amplitude variation trolley 3 moves to crane arm 4 leading sections, the horizontal derrick line 12 in amplitude variation trolley 3 rears also produces serious sagging tendency, at this moment, butt rope support 2 is positioned at the midway location (being maximum sag place) of crane arm 4 length directions substantially, and its holder rope roller 7 is also held sagging derrick line 12 in scope of design.
When amplitude variation trolley 3 continued to move forward from being positioned at the outside luffing of crane arm 4 roots and arriving crane arm 4 midways location, convenient itself moving with amplitude variation trolley 3 promoted forestock rope support 1 ahead running, and drives butt rope support 2 ahead runnings by luffing hauling rope 5.Vice versa.Final unsettled derrick line 12 length in crane arm 4 belows that realize are not more than 1/2 of crane arm 4 total lengths all the time, significantly reduce the sagging naturally of jib for tower crane 4 lower horizontal derrick lines 12, finally guaranteed the construction safety and the handled easily of tower crane.Its principle of work is applicable to all horizontal arm trolley-jib tower cranes.
The above, it only is preferred embodiment of the present utility model, be not to be the restriction of the utility model being made other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away to any simple modification, equivalent variations and remodeling that above embodiment did, still belongs to the protection domain of technical solutions of the utility model according to technical spirit of the present utility model.
Claims (4)
1. the portable rope supporting device of tower crane, comprise amplitude variation trolley (3), be installed in wind up a plurality of sheaves (11) of framework underside and forward and backward end of crane arm (4), and luffing hauling rope (5), amplitude variation trolley (3) is installed on crane arm (4) the lower edge slide rail, it is characterized in that: add forestock rope support (1) and butt rope support (2) respectively in the forward and backward both sides of amplitude variation trolley (3), luffing hauling rope (5) is walked around each sheave (11) successively with forestock rope support (1), amplitude variation trolley (3) and butt rope support (2) series connection.
2. the portable rope supporting device of tower crane according to claim 1, it is characterized in that: described forestock rope support (1) comprises two pairs of carriage pulleys (6), holder rope running roller (7), otic placode (8), push rod (9) and carriage (10), two pairs of carriage pulleys (6) horizontal symmetrical is installed in carriage (10) inside upper part, two outsides are provided with otic placode (8) about carriage (10), carriage (10) lower end is provided with holder rope running roller (7), and the relative side with amplitude variation trolley (3) of forestock rope support (1) is provided with push rod (9).
3. the portable rope supporting device of tower crane according to claim 1, it is characterized in that: described butt rope support (2) is identical with forestock rope support (1) structure, and looking-glass symmetry is installed.
4. the portable rope supporting device of tower crane according to claim 1, it is characterized in that: described amplitude variation trolley (3) both sides and lower edge slide rail junction are provided with little conductor rope otic placode (13), little conductor rope otic placode (13) is two, and front and back are symmetrical arranged, and the inboard is provided with little sheave (14).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2010202525410U CN201729606U (en) | 2010-07-01 | 2010-07-01 | Movable rope bearing device of tower crane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202525410U CN201729606U (en) | 2010-07-01 | 2010-07-01 | Movable rope bearing device of tower crane |
Publications (1)
Publication Number | Publication Date |
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CN201729606U true CN201729606U (en) | 2011-02-02 |
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CN2010202525410U Expired - Fee Related CN201729606U (en) | 2010-07-01 | 2010-07-01 | Movable rope bearing device of tower crane |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103213914A (en) * | 2013-04-02 | 2013-07-24 | 康力电梯股份有限公司 | Pulley block structure for steel wire rope |
CN104944287A (en) * | 2015-05-11 | 2015-09-30 | 岳文智 | Moving vehicle cable vibration absorption device |
CN108706480A (en) * | 2018-08-31 | 2018-10-26 | 中建重庆机械租赁有限公司 | Tower crane main rope rope supporting device |
-
2010
- 2010-07-01 CN CN2010202525410U patent/CN201729606U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103213914A (en) * | 2013-04-02 | 2013-07-24 | 康力电梯股份有限公司 | Pulley block structure for steel wire rope |
CN104944287A (en) * | 2015-05-11 | 2015-09-30 | 岳文智 | Moving vehicle cable vibration absorption device |
CN108706480A (en) * | 2018-08-31 | 2018-10-26 | 中建重庆机械租赁有限公司 | Tower crane main rope rope supporting device |
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Legal Events
Date | Code | Title | Description |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110202 Termination date: 20130701 |